NO. 1777. ON JAPANESE SAWFLIES—ROHWER. 115 



black; posterior tibiae at base, and the tarsi ferruginous; abdomen 

 ferruginous, the sutures black. Wings yellowish hyaline, vitreous, 

 apices slightly dusky; venation black, costa and stigma ferruginous. 



Type-locality. — Japan. One female, No. 13, collector unknown. 



Ty2)e.—Cat. No. 13335, U.S.N.M. 



Differs in some points from the genotype of Lagium. 



Genus JERMAKIA Jako^A^le^A^. 



Type of genus. — AUantus cepTialotes Jakowlew. 



Species with much the same habitus as Tenthredo (olim AUantus). 

 Eyes large and strongly converging to the clypeus; malar space 

 very narrow about half the length of the pedicellum; maxillary palpi 

 five jointed, labial palpi four jointed; mandibles large, robust; 

 labrum rather large; clypeus large, emarginate, and without a 

 suture separating it from the face; no dilations above the antennae; 

 third antennal joint distinctly longer than the fourth; pedicellum 

 longer than wide; scutellum elevated; suture between the meso- and 

 mctanotum strong; a very deep suture between the metathorax and 

 first segment of the abdomen; first segment of the abdomen entire, 

 without the median longitudinal suture; tarsal claws cleft; venation 

 as in Tenthredo. 



This genus is distinct in the absence of the suture at the top of 

 the clypeus, and the entire first segment of the abdomen. 



The characters, given above, were taken from JermaJcia japonica 

 Rohwer, which seems undoubtedly to belong to this genus. F. W. 

 Konow ° places Tenthredo jiavida Marlatt in this genus and gives 

 the genus standing on this species. Tenthredo Jiavida Marlatt does 

 not belong to the genus Jermalcia. 



JERMAKIA JAPONICA, new species. 



Male. — Length about 13 mm. Clypeus squarely emarginate, with 

 a slight rounded production in the middle, lobes short, truncate at 

 apex; labrum and clypeus sliining, impunctatc; front and vertex with 

 large well-separated punctures, posterior orbits with closer smaller 

 ones; ocelli in a triangle greater than an equilateral triangle; post- 

 ocellar area not sharply defined, the lateral furrows curved; ocell- 

 occipital line and ocellorbital lines subequal, much longer than the 

 postocellar line ; occiput carinated ; mesonotum with small, close punc- 

 tures; scutellum pyramidal, with large punctures at the base but shin- 

 ing at the apex ; mesopleurae with irregular confluent punctures ; meso- 

 sternum with a tubercle at lateral posterior angles ; abdomen smooth, 

 shining; hypopj^gidium rounded at the apex, broader than long; 



a Genera Insectorum, fas. 29, 1906, p. 132. 



